Broadband SED for 2010 July 16. The simultaneous data are depicted with red filled circles (which involve observations from MAGIC, Fermi-LAT, Swift-XRT, and Swift-UVOT). The gamma-ray data points were corrected for attenuation on the EBL using a redshift z = 0.18 and the model from Franceschini et al. (2008). The red arrows show the 95% upper limits for a one-day-averaged Fermi-LAT spectrum (MJD: 55 392.5–55 393.5), which is coincident with the MAGIC VHE observation from July 16. The gray filled squares represent the one-month-averaged Fermi-LAT spectrum in 2010 July (MJD: 55 378–55 409), and the gray filled circles show all the radio/optical/UV/X-ray data taken during the MWL campaign in 2010, excluding July 16. The magenta solid curve represents the resulting intrinsic spectrum parameterized with a one-zone SSC model. See text for further details.